WordPress 4.7.2
[autoinstalls/wordpress.git] / wp-admin / includes / class-wp-posts-list-table.php
index 016a726b74b1270709ae84a1ae1258c3a7b6133f..4e1ba34f173ddd3228e3a1fd353bd801cf2874c4 100644 (file)
@@ -1,40 +1,48 @@
 <?php
 /**
- * Posts List Table class.
+ * List Table API: WP_Posts_List_Table class
  *
  * @package WordPress
- * @subpackage List_Table
+ * @subpackage Administration
+ * @since 3.1.0
+ */
+
+/**
+ * Core class used to implement displaying posts in a list table.
+ *
  * @since 3.1.0
  * @access private
+ *
+ * @see WP_List_Table
  */
 class WP_Posts_List_Table extends WP_List_Table {
 
        /**
-        * Whether the items should be displayed hierarchically or linearly
+        * Whether the items should be displayed hierarchically or linearly.
         *
         * @since 3.1.0
         * @var bool
         * @access protected
         */
-       var $hierarchical_display;
+       protected $hierarchical_display;
 
        /**
-        * Holds the number of pending comments for each post
+        * Holds the number of pending comments for each post.
         *
         * @since 3.1.0
-        * @var int
+        * @var array
         * @access protected
         */
-       var $comment_pending_count;
+       protected $comment_pending_count;
 
        /**
-        * Holds the number of posts for this user
+        * Holds the number of posts for this user.
         *
         * @since 3.1.0
         * @var int
         * @access private
         */
-       var $user_posts_count;
+       private $user_posts_count;
 
        /**
         * Holds the number of posts which are sticky.
@@ -43,9 +51,33 @@ class WP_Posts_List_Table extends WP_List_Table {
         * @var int
         * @access private
         */
-       var $sticky_posts_count = 0;
+       private $sticky_posts_count = 0;
+
+       private $is_trash;
+
+       /**
+        * Current level for output.
+        *
+        * @since 4.3.0
+        * @access protected
+        * @var int
+        */
+       protected $current_level = 0;
 
-       function __construct( $args = array() ) {
+       /**
+        * Constructor.
+        *
+        * @since 3.1.0
+        * @access public
+        *
+        * @see WP_List_Table::__construct() for more information on default arguments.
+        *
+        * @global WP_Post_Type $post_type_object
+        * @global wpdb         $wpdb
+        *
+        * @param array $args An associative array of arguments.
+        */
+       public function __construct( $args = array() ) {
                global $post_type_object, $wpdb;
 
                parent::__construct( array(
@@ -53,72 +85,183 @@ class WP_Posts_List_Table extends WP_List_Table {
                        'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
                ) );
 
-               $post_type = $this->screen->post_type;
+               $post_type        = $this->screen->post_type;
                $post_type_object = get_post_type_object( $post_type );
 
-               if ( !current_user_can( $post_type_object->cap->edit_others_posts ) ) {
-                       $exclude_states = get_post_stati( array( 'show_in_admin_all_list' => false ) );
-                       $this->user_posts_count = $wpdb->get_var( $wpdb->prepare( "
-                               SELECT COUNT( 1 ) FROM $wpdb->posts
-                               WHERE post_type = %s AND post_status NOT IN ( '" . implode( "','", $exclude_states ) . "' )
-                               AND post_author = %d
-                       ", $post_type, get_current_user_id() ) );
-
-                       if ( $this->user_posts_count && empty( $_REQUEST['post_status'] ) && empty( $_REQUEST['all_posts'] ) && empty( $_REQUEST['author'] ) && empty( $_REQUEST['show_sticky'] ) )
-                               $_GET['author'] = get_current_user_id();
+               $exclude_states   = get_post_stati( array(
+                       'show_in_admin_all_list' => false,
+               ) );
+               $this->user_posts_count = intval( $wpdb->get_var( $wpdb->prepare( "
+                       SELECT COUNT( 1 )
+                       FROM $wpdb->posts
+                       WHERE post_type = %s
+                       AND post_status NOT IN ( '" . implode( "','", $exclude_states ) . "' )
+                       AND post_author = %d
+               ", $post_type, get_current_user_id() ) ) );
+
+               if ( $this->user_posts_count && ! current_user_can( $post_type_object->cap->edit_others_posts ) && empty( $_REQUEST['post_status'] ) && empty( $_REQUEST['all_posts'] ) && empty( $_REQUEST['author'] ) && empty( $_REQUEST['show_sticky'] ) ) {
+                       $_GET['author'] = get_current_user_id();
                }
 
-               if ( 'post' == $post_type && $sticky_posts = get_option( 'sticky_posts' ) ) {
+               if ( 'post' === $post_type && $sticky_posts = get_option( 'sticky_posts' ) ) {
                        $sticky_posts = implode( ', ', array_map( 'absint', (array) $sticky_posts ) );
                        $this->sticky_posts_count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT( 1 ) FROM $wpdb->posts WHERE post_type = %s AND post_status NOT IN ('trash', 'auto-draft') AND ID IN ($sticky_posts)", $post_type ) );
                }
        }
 
-       function ajax_user_can() {
+       /**
+        * Sets whether the table layout should be hierarchical or not.
+        *
+        * @since 4.2.0
+        *
+        * @param bool $display Whether the table layout should be hierarchical.
+        */
+       public function set_hierarchical_display( $display ) {
+               $this->hierarchical_display = $display;
+       }
+
+       /**
+        *
+        * @return bool
+        */
+       public function ajax_user_can() {
                return current_user_can( get_post_type_object( $this->screen->post_type )->cap->edit_posts );
        }
 
-       function prepare_items() {
+       /**
+        *
+        * @global array    $avail_post_stati
+        * @global WP_Query $wp_query
+        * @global int      $per_page
+        * @global string   $mode
+        */
+       public function prepare_items() {
                global $avail_post_stati, $wp_query, $per_page, $mode;
 
+               // is going to call wp()
                $avail_post_stati = wp_edit_posts_query();
 
-               $this->hierarchical_display = ( is_post_type_hierarchical( $this->screen->post_type ) && 'menu_order title' == $wp_query->query['orderby'] );
-
-               $total_items = $this->hierarchical_display ? $wp_query->post_count : $wp_query->found_posts;
+               $this->set_hierarchical_display( is_post_type_hierarchical( $this->screen->post_type ) && 'menu_order title' === $wp_query->query['orderby'] );
 
                $post_type = $this->screen->post_type;
                $per_page = $this->get_items_per_page( 'edit_' . $post_type . '_per_page' );
+
+               /** This filter is documented in wp-admin/includes/post.php */
                $per_page = apply_filters( 'edit_posts_per_page', $per_page, $post_type );
 
-               if ( $this->hierarchical_display )
-                       $total_pages = ceil( $total_items / $per_page );
-               else
-                       $total_pages = $wp_query->max_num_pages;
+               if ( $this->hierarchical_display ) {
+                       $total_items = $wp_query->post_count;
+               } elseif ( $wp_query->found_posts || $this->get_pagenum() === 1 ) {
+                       $total_items = $wp_query->found_posts;
+               } else {
+                       $post_counts = (array) wp_count_posts( $post_type, 'readable' );
+
+                       if ( isset( $_REQUEST['post_status'] ) && in_array( $_REQUEST['post_status'] , $avail_post_stati ) ) {
+                               $total_items = $post_counts[ $_REQUEST['post_status'] ];
+                       } elseif ( isset( $_REQUEST['show_sticky'] ) && $_REQUEST['show_sticky'] ) {
+                               $total_items = $this->sticky_posts_count;
+                       } elseif ( isset( $_GET['author'] ) && $_GET['author'] == get_current_user_id() ) {
+                               $total_items = $this->user_posts_count;
+                       } else {
+                               $total_items = array_sum( $post_counts );
+
+                               // Subtract post types that are not included in the admin all list.
+                               foreach ( get_post_stati( array( 'show_in_admin_all_list' => false ) ) as $state ) {
+                                       $total_items -= $post_counts[ $state ];
+                               }
+                       }
+               }
 
-               $mode = empty( $_REQUEST['mode'] ) ? 'list' : $_REQUEST['mode'];
+               if ( ! empty( $_REQUEST['mode'] ) ) {
+                       $mode = $_REQUEST['mode'] === 'excerpt' ? 'excerpt' : 'list';
+                       set_user_setting( 'posts_list_mode', $mode );
+               } else {
+                       $mode = get_user_setting( 'posts_list_mode', 'list' );
+               }
 
-               $this->is_trash = isset( $_REQUEST['post_status'] ) && $_REQUEST['post_status'] == 'trash';
+               $this->is_trash = isset( $_REQUEST['post_status'] ) && $_REQUEST['post_status'] === 'trash';
 
                $this->set_pagination_args( array(
                        'total_items' => $total_items,
-                       'total_pages' => $total_pages,
                        'per_page' => $per_page
                ) );
        }
 
-       function has_items() {
+       /**
+        *
+        * @return bool
+        */
+       public function has_items() {
                return have_posts();
        }
 
-       function no_items() {
-               if ( isset( $_REQUEST['post_status'] ) && 'trash' == $_REQUEST['post_status'] )
+       /**
+        * @access public
+        */
+       public function no_items() {
+               if ( isset( $_REQUEST['post_status'] ) && 'trash' === $_REQUEST['post_status'] )
                        echo get_post_type_object( $this->screen->post_type )->labels->not_found_in_trash;
                else
                        echo get_post_type_object( $this->screen->post_type )->labels->not_found;
        }
 
-       function get_views() {
+       /**
+        * Determine if the current view is the "All" view.
+        *
+        * @since 4.2.0
+        *
+        * @return bool Whether the current view is the "All" view.
+        */
+       protected function is_base_request() {
+               $vars = $_GET;
+               unset( $vars['paged'] );
+
+               if ( empty( $vars ) ) {
+                       return true;
+               } elseif ( 1 === count( $vars ) && ! empty( $vars['post_type'] ) ) {
+                       return $this->screen->post_type === $vars['post_type'];
+               }
+
+               return 1 === count( $vars ) && ! empty( $vars['mode'] );
+       }
+
+       /**
+        * Helper to create links to edit.php with params.
+        *
+        * @since 4.4.0
+        * @access protected
+        *
+        * @param array  $args  URL parameters for the link.
+        * @param string $label Link text.
+        * @param string $class Optional. Class attribute. Default empty string.
+        * @return string The formatted link string.
+        */
+       protected function get_edit_link( $args, $label, $class = '' ) {
+               $url = add_query_arg( $args, 'edit.php' );
+
+               $class_html = '';
+               if ( ! empty( $class ) ) {
+                        $class_html = sprintf(
+                               ' class="%s"',
+                               esc_attr( $class )
+                       );
+               }
+
+               return sprintf(
+                       '<a href="%s"%s>%s</a>',
+                       esc_url( $url ),
+                       $class_html,
+                       $label
+               );
+       }
+
+       /**
+        *
+        * @global array $locked_post_status This seems to be deprecated.
+        * @global array $avail_post_stati
+        * @return array
+        */
+       protected function get_views() {
                global $locked_post_status, $avail_post_stati;
 
                $post_type = $this->screen->post_type;
@@ -128,48 +271,110 @@ class WP_Posts_List_Table extends WP_List_Table {
 
                $status_links = array();
                $num_posts = wp_count_posts( $post_type, 'readable' );
+               $total_posts = array_sum( (array) $num_posts );
                $class = '';
-               $allposts = '';
 
                $current_user_id = get_current_user_id();
+               $all_args = array( 'post_type' => $post_type );
+               $mine = '';
 
-               if ( $this->user_posts_count ) {
-                       if ( isset( $_GET['author'] ) && ( $_GET['author'] == $current_user_id ) )
-                               $class = ' class="current"';
-                       $status_links['mine'] = "<a href='edit.php?post_type=$post_type&author=$current_user_id'$class>" . sprintf( _nx( 'Mine <span class="count">(%s)</span>', 'Mine <span class="count">(%s)</span>', $this->user_posts_count, 'posts' ), number_format_i18n( $this->user_posts_count ) ) . '</a>';
-                       $allposts = '&all_posts=1';
+               // Subtract post types that are not included in the admin all list.
+               foreach ( get_post_stati( array( 'show_in_admin_all_list' => false ) ) as $state ) {
+                       $total_posts -= $num_posts->$state;
                }
 
-               $total_posts = array_sum( (array) $num_posts );
+               if ( $this->user_posts_count && $this->user_posts_count !== $total_posts ) {
+                       if ( isset( $_GET['author'] ) && ( $_GET['author'] == $current_user_id ) ) {
+                               $class = 'current';
+                       }
 
-               // Subtract post types that are not included in the admin all list.
-               foreach ( get_post_stati( array('show_in_admin_all_list' => false) ) as $state )
-                       $total_posts -= $num_posts->$state;
+                       $mine_args = array(
+                               'post_type' => $post_type,
+                               'author' => $current_user_id
+                       );
+
+                       $mine_inner_html = sprintf(
+                               _nx(
+                                       'Mine <span class="count">(%s)</span>',
+                                       'Mine <span class="count">(%s)</span>',
+                                       $this->user_posts_count,
+                                       'posts'
+                               ),
+                               number_format_i18n( $this->user_posts_count )
+                       );
+
+                       $mine = $this->get_edit_link( $mine_args, $mine_inner_html, $class );
+
+                       $all_args['all_posts'] = 1;
+                       $class = '';
+               }
 
-               $class = empty( $class ) && empty( $_REQUEST['post_status'] ) && empty( $_REQUEST['show_sticky'] ) ? ' class="current"' : '';
-               $status_links['all'] = "<a href='edit.php?post_type=$post_type{$allposts}'$class>" . sprintf( _nx( 'All <span class="count">(%s)</span>', 'All <span class="count">(%s)</span>', $total_posts, 'posts' ), number_format_i18n( $total_posts ) ) . '</a>';
+               if ( empty( $class ) && ( $this->is_base_request() || isset( $_REQUEST['all_posts'] ) ) ) {
+                       $class = 'current';
+               }
+
+               $all_inner_html = sprintf(
+                       _nx(
+                               'All <span class="count">(%s)</span>',
+                               'All <span class="count">(%s)</span>',
+                               $total_posts,
+                               'posts'
+                       ),
+                       number_format_i18n( $total_posts )
+               );
+
+               $status_links['all'] = $this->get_edit_link( $all_args, $all_inner_html, $class );
+               if ( $mine ) {
+                       $status_links['mine'] = $mine;
+               }
 
                foreach ( get_post_stati(array('show_in_admin_status_list' => true), 'objects') as $status ) {
                        $class = '';
 
                        $status_name = $status->name;
 
-                       if ( !in_array( $status_name, $avail_post_stati ) )
+                       if ( ! in_array( $status_name, $avail_post_stati ) || empty( $num_posts->$status_name ) ) {
                                continue;
+                       }
 
-                       if ( empty( $num_posts->$status_name ) )
-                               continue;
+                       if ( isset($_REQUEST['post_status']) && $status_name === $_REQUEST['post_status'] ) {
+                               $class = 'current';
+                       }
+
+                       $status_args = array(
+                               'post_status' => $status_name,
+                               'post_type' => $post_type,
+                       );
 
-                       if ( isset($_REQUEST['post_status']) && $status_name == $_REQUEST['post_status'] )
-                               $class = ' class="current"';
+                       $status_label = sprintf(
+                               translate_nooped_plural( $status->label_count, $num_posts->$status_name ),
+                               number_format_i18n( $num_posts->$status_name )
+                       );
 
-                       $status_links[$status_name] = "<a href='edit.php?post_status=$status_name&amp;post_type=$post_type'$class>" . sprintf( translate_nooped_plural( $status->label_count, $num_posts->$status_name ), number_format_i18n( $num_posts->$status_name ) ) . '</a>';
+                       $status_links[ $status_name ] = $this->get_edit_link( $status_args, $status_label, $class );
                }
 
                if ( ! empty( $this->sticky_posts_count ) ) {
-                       $class = ! empty( $_REQUEST['show_sticky'] ) ? ' class="current"' : '';
-
-                       $sticky_link = array( 'sticky' => "<a href='edit.php?post_type=$post_type&amp;show_sticky=1'$class>" . sprintf( _nx( 'Sticky <span class="count">(%s)</span>', 'Sticky <span class="count">(%s)</span>', $this->sticky_posts_count, 'posts' ), number_format_i18n( $this->sticky_posts_count ) ) . '</a>' );
+                       $class = ! empty( $_REQUEST['show_sticky'] ) ? 'current' : '';
+
+                       $sticky_args = array(
+                               'post_type'     => $post_type,
+                               'show_sticky' => 1
+                       );
+
+                       $sticky_inner_html = sprintf(
+                               _nx(
+                                       'Sticky <span class="count">(%s)</span>',
+                                       'Sticky <span class="count">(%s)</span>',
+                                       $this->sticky_posts_count,
+                                       'posts'
+                               ),
+                               number_format_i18n( $this->sticky_posts_count )
+                       );
+
+                       $sticky_link = array(
+                               'sticky' => $this->get_edit_link( $sticky_args, $sticky_inner_html, $class )
+                       );
 
                        // Sticky comes after Publish, or if not listed, after All.
                        $split = 1 + array_search( ( isset( $status_links['publish'] ) ? 'publish' : 'all' ), array_keys( $status_links ) );
@@ -179,44 +384,108 @@ class WP_Posts_List_Table extends WP_List_Table {
                return $status_links;
        }
 
-       function get_bulk_actions() {
+       /**
+        *
+        * @return array
+        */
+       protected function get_bulk_actions() {
                $actions = array();
+               $post_type_obj = get_post_type_object( $this->screen->post_type );
 
-               if ( $this->is_trash )
-                       $actions['untrash'] = __( 'Restore' );
-               else
-                       $actions['edit'] = __( 'Edit' );
+               if ( current_user_can( $post_type_obj->cap->edit_posts ) ) {
+                       if ( $this->is_trash ) {
+                               $actions['untrash'] = __( 'Restore' );
+                       } else {
+                               $actions['edit'] = __( 'Edit' );
+                       }
+               }
 
-               if ( $this->is_trash || !EMPTY_TRASH_DAYS )
-                       $actions['delete'] = __( 'Delete Permanently' );
-               else
-                       $actions['trash'] = __( 'Move to Trash' );
+               if ( current_user_can( $post_type_obj->cap->delete_posts ) ) {
+                       if ( $this->is_trash || ! EMPTY_TRASH_DAYS ) {
+                               $actions['delete'] = __( 'Delete Permanently' );
+                       } else {
+                               $actions['trash'] = __( 'Move to Trash' );
+                       }
+               }
 
                return $actions;
        }
 
-       function extra_tablenav( $which ) {
+       /**
+        * Displays a categories drop-down for filtering on the Posts list table.
+        *
+        * @since 4.6.0
+        * @access protected
+        *
+        * @global int $cat Currently selected category.
+        *
+        * @param string $post_type Post type slug.
+        */
+       protected function categories_dropdown( $post_type ) {
                global $cat;
+
+               /**
+                * Filters whether to remove the 'Categories' drop-down from the post list table.
+                *
+                * @since 4.6.0
+                *
+                * @param bool   $disable   Whether to disable the categories drop-down. Default false.
+                * @param string $post_type Post type slug.
+                */
+               if ( false !== apply_filters( 'disable_categories_dropdown', false, $post_type ) ) {
+                       return;
+               }
+
+               if ( is_object_in_taxonomy( $post_type, 'category' ) ) {
+                       $dropdown_options = array(
+                               'show_option_all' => get_taxonomy( 'category' )->labels->all_items,
+                               'hide_empty' => 0,
+                               'hierarchical' => 1,
+                               'show_count' => 0,
+                               'orderby' => 'name',
+                               'selected' => $cat
+                       );
+
+                       echo '<label class="screen-reader-text" for="cat">' . __( 'Filter by category' ) . '</label>';
+                       wp_dropdown_categories( $dropdown_options );
+               }
+       }
+
+       /**
+        * @param string $which
+        */
+       protected function extra_tablenav( $which ) {
 ?>
                <div class="alignleft actions">
 <?php
-               if ( 'top' == $which && !is_singular() ) {
+               if ( 'top' === $which && !is_singular() ) {
+                       ob_start();
 
                        $this->months_dropdown( $this->screen->post_type );
-
-                       if ( is_object_in_taxonomy( $this->screen->post_type, 'category' ) ) {
-                               $dropdown_options = array(
-                                       'show_option_all' => __( 'View all categories' ),
-                                       'hide_empty' => 0,
-                                       'hierarchical' => 1,
-                                       'show_count' => 0,
-                                       'orderby' => 'name',
-                                       'selected' => $cat
-                               );
-                               wp_dropdown_categories( $dropdown_options );
+                       $this->categories_dropdown( $this->screen->post_type );
+
+                       /**
+                        * Fires before the Filter button on the Posts and Pages list tables.
+                        *
+                        * The Filter button allows sorting by date and/or category on the
+                        * Posts list table, and sorting by date on the Pages list table.
+                        *
+                        * @since 2.1.0
+                        * @since 4.4.0 The `$post_type` parameter was added.
+                        * @since 4.6.0 The `$which` parameter was added.
+                        *
+                        * @param string $post_type The post type slug.
+                        * @param string $which     The location of the extra table nav markup:
+                        *                          'top' or 'bottom'.
+                        */
+                       do_action( 'restrict_manage_posts', $this->screen->post_type, $which );
+
+                       $output = ob_get_clean();
+
+                       if ( ! empty( $output ) ) {
+                               echo $output;
+                               submit_button( __( 'Filter' ), '', 'filter_action', false, array( 'id' => 'post-query-submit' ) );
                        }
-                       do_action( 'restrict_manage_posts' );
-                       submit_button( __( 'Filter' ), 'button', false, false, array( 'id' => 'post-query-submit' ) );
                }
 
                if ( $this->is_trash && current_user_can( get_post_type_object( $this->screen->post_type )->cap->edit_others_posts ) ) {
@@ -225,29 +494,41 @@ class WP_Posts_List_Table extends WP_List_Table {
 ?>
                </div>
 <?php
+               /**
+                * Fires immediately following the closing "actions" div in the tablenav for the posts
+                * list table.
+                *
+                * @since 4.4.0
+                *
+                * @param string $which The location of the extra table nav markup: 'top' or 'bottom'.
+                */
+               do_action( 'manage_posts_extra_tablenav', $which );
        }
 
-       function current_action() {
+       /**
+        *
+        * @return string
+        */
+       public function current_action() {
                if ( isset( $_REQUEST['delete_all'] ) || isset( $_REQUEST['delete_all2'] ) )
                        return 'delete_all';
 
                return parent::current_action();
        }
 
-       function pagination( $which ) {
-               global $mode;
-
-               parent::pagination( $which );
-
-               if ( 'top' == $which && ! is_post_type_hierarchical( $this->screen->post_type ) )
-                       $this->view_switcher( $mode );
-       }
-
-       function get_table_classes() {
-               return array( 'widefat', 'fixed', is_post_type_hierarchical( $this->screen->post_type ) ? 'pages' : 'posts' );
+       /**
+        *
+        * @return array
+        */
+       protected function get_table_classes() {
+               return array( 'widefat', 'fixed', 'striped', is_post_type_hierarchical( $this->screen->post_type ) ? 'pages' : 'posts' );
        }
 
-       function get_columns() {
+       /**
+        *
+        * @return array
+        */
+       public function get_columns() {
                $post_type = $this->screen->post_type;
 
                $posts_columns = array();
@@ -257,21 +538,31 @@ class WP_Posts_List_Table extends WP_List_Table {
                /* translators: manage posts column name */
                $posts_columns['title'] = _x( 'Title', 'column name' );
 
-               if ( post_type_supports( $post_type, 'author' ) )
+               if ( post_type_supports( $post_type, 'author' ) ) {
                        $posts_columns['author'] = __( 'Author' );
-
-               $taxonomies = array();
+               }
 
                $taxonomies = get_object_taxonomies( $post_type, 'objects' );
                $taxonomies = wp_filter_object_list( $taxonomies, array( 'show_admin_column' => true ), 'and', 'name' );
 
+               /**
+                * Filters the taxonomy columns in the Posts list table.
+                *
+                * The dynamic portion of the hook name, `$post_type`, refers to the post
+                * type slug.
+                *
+                * @since 3.5.0
+                *
+                * @param array  $taxonomies Array of taxonomies to show columns for.
+                * @param string $post_type  The post type.
+                */
                $taxonomies = apply_filters( "manage_taxonomies_for_{$post_type}_columns", $taxonomies, $post_type );
                $taxonomies = array_filter( $taxonomies, 'taxonomy_exists' );
 
                foreach ( $taxonomies as $taxonomy ) {
-                       if ( 'category' == $taxonomy )
+                       if ( 'category' === $taxonomy )
                                $column_key = 'categories';
-                       elseif ( 'post_tag' == $taxonomy )
+                       elseif ( 'post_tag' === $taxonomy )
                                $column_key = 'tags';
                        else
                                $column_key = 'taxonomy-' . $taxonomy;
@@ -281,20 +572,50 @@ class WP_Posts_List_Table extends WP_List_Table {
 
                $post_status = !empty( $_REQUEST['post_status'] ) ? $_REQUEST['post_status'] : 'all';
                if ( post_type_supports( $post_type, 'comments' ) && !in_array( $post_status, array( 'pending', 'draft', 'future' ) ) )
-                       $posts_columns['comments'] = '<span class="vers"><div title="' . esc_attr__( 'Comments' ) . '" class="comment-grey-bubble"></div></span>';
+                       $posts_columns['comments'] = '<span class="vers comment-grey-bubble" title="' . esc_attr__( 'Comments' ) . '"><span class="screen-reader-text">' . __( 'Comments' ) . '</span></span>';
 
                $posts_columns['date'] = __( 'Date' );
 
-               if ( 'page' == $post_type )
+               if ( 'page' === $post_type ) {
+
+                       /**
+                        * Filters the columns displayed in the Pages list table.
+                        *
+                        * @since 2.5.0
+                        *
+                        * @param array $post_columns An array of column names.
+                        */
                        $posts_columns = apply_filters( 'manage_pages_columns', $posts_columns );
-               else
+               } else {
+
+                       /**
+                        * Filters the columns displayed in the Posts list table.
+                        *
+                        * @since 1.5.0
+                        *
+                        * @param array  $posts_columns An array of column names.
+                        * @param string $post_type     The post type slug.
+                        */
                        $posts_columns = apply_filters( 'manage_posts_columns', $posts_columns, $post_type );
-               $posts_columns = apply_filters( "manage_{$post_type}_posts_columns", $posts_columns );
+               }
 
-               return $posts_columns;
+               /**
+                * Filters the columns displayed in the Posts list table for a specific post type.
+                *
+                * The dynamic portion of the hook name, `$post_type`, refers to the post type slug.
+                *
+                * @since 3.0.0
+                *
+                * @param array $post_columns An array of column names.
+                */
+               return apply_filters( "manage_{$post_type}_posts_columns", $posts_columns );
        }
 
-       function get_sortable_columns() {
+       /**
+        *
+        * @return array
+        */
+       protected function get_sortable_columns() {
                return array(
                        'title'    => 'title',
                        'parent'   => 'parent',
@@ -303,7 +624,13 @@ class WP_Posts_List_Table extends WP_List_Table {
                );
        }
 
-       function display_rows( $posts = array(), $level = 0 ) {
+       /**
+        * @global WP_Query $wp_query
+        * @global int $per_page
+        * @param array $posts
+        * @param int $level
+        */
+       public function display_rows( $posts = array(), $level = 0 ) {
                global $wp_query, $per_page;
 
                if ( empty( $posts ) )
@@ -318,9 +645,11 @@ class WP_Posts_List_Table extends WP_List_Table {
                }
        }
 
-       function _display_rows( $posts, $level = 0 ) {
-               global $mode;
-
+       /**
+        * @param array $posts
+        * @param int $level
+        */
+       private function _display_rows( $posts, $level = 0 ) {
                // Create array of post IDs.
                $post_ids = array();
 
@@ -333,7 +662,14 @@ class WP_Posts_List_Table extends WP_List_Table {
                        $this->single_row( $post, $level );
        }
 
-       function _display_rows_hierarchical( $pages, $pagenum = 1, $per_page = 20 ) {
+       /**
+        * @global wpdb    $wpdb
+        * @global WP_Post $post
+        * @param array $pages
+        * @param int $pagenum
+        * @param int $per_page
+        */
+       private function _display_rows_hierarchical( $pages, $pagenum = 1, $per_page = 20 ) {
                global $wpdb;
 
                $level = 0;
@@ -342,11 +678,11 @@ class WP_Posts_List_Table extends WP_List_Table {
                        $pages = get_pages( array( 'sort_column' => 'menu_order' ) );
 
                        if ( ! $pages )
-                               return false;
+                               return;
                }
 
                /*
-                * arrange pages into two parts: top level pages and children_pages
+                * Arrange pages into two parts: top level pages and children_pages
                 * children_pages is two dimensional array, eg.
                 * children_pages[10][] contains all sub-pages whose parent is 10.
                 * It only takes O( N ) to arrange this and it takes O( 1 ) for subsequent lookup operations
@@ -359,7 +695,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 
                        foreach ( $pages as $page ) {
 
-                               // catch and repair bad pages
+                               // Catch and repair bad pages.
                                if ( $page->post_parent == $page->ID ) {
                                        $page->post_parent = 0;
                                        $wpdb->update( $wpdb->posts, array( 'post_parent' => 0 ), array( 'ID' => $page->ID ) );
@@ -378,23 +714,23 @@ class WP_Posts_List_Table extends WP_List_Table {
                $count = 0;
                $start = ( $pagenum - 1 ) * $per_page;
                $end = $start + $per_page;
+               $to_display = array();
 
                foreach ( $pages as $page ) {
                        if ( $count >= $end )
                                break;
 
                        if ( $count >= $start ) {
-                               echo "\t";
-                               $this->single_row( $page, $level );
+                               $to_display[$page->ID] = $level;
                        }
 
                        $count++;
 
                        if ( isset( $children_pages ) )
-                               $this->_page_rows( $children_pages, $count, $page->ID, $level + 1, $pagenum, $per_page );
+                               $this->_page_rows( $children_pages, $count, $page->ID, $level + 1, $pagenum, $per_page, $to_display );
                }
 
-               // if it is the last pagenum and there are orphaned pages, display them with paging as well
+               // If it is the last pagenum and there are orphaned pages, display them with paging as well.
                if ( isset( $children_pages ) && $count < $end ){
                        foreach ( $children_pages as $orphans ){
                                foreach ( $orphans as $op ) {
@@ -402,14 +738,25 @@ class WP_Posts_List_Table extends WP_List_Table {
                                                break;
 
                                        if ( $count >= $start ) {
-                                               echo "\t";
-                                               $this->single_row( $op, 0 );
+                                               $to_display[$op->ID] = 0;
                                        }
 
                                        $count++;
                                }
                        }
                }
+
+               $ids = array_keys( $to_display );
+               _prime_post_caches( $ids );
+
+               if ( ! isset( $GLOBALS['post'] ) ) {
+                       $GLOBALS['post'] = reset( $ids );
+               }
+
+               foreach ( $to_display as $page_id => $level ) {
+                       echo "\t";
+                       $this->single_row( $page_id, $level );
+               }
        }
 
        /**
@@ -417,6 +764,7 @@ class WP_Posts_List_Table extends WP_List_Table {
         * together with paging support
         *
         * @since 3.1.0 (Standalone function exists since 2.6.0)
+        * @since 4.2.0 Added the `$to_display` parameter.
         *
         * @param array $children_pages
         * @param int $count
@@ -424,9 +772,9 @@ class WP_Posts_List_Table extends WP_List_Table {
         * @param int $level
         * @param int $pagenum
         * @param int $per_page
+        * @param array $to_display List of pages to be displayed. Passed by reference.
         */
-       function _page_rows( &$children_pages, &$count, $parent, $level, $pagenum, $per_page ) {
-
+       private function _page_rows( &$children_pages, &$count, $parent, $level, $pagenum, $per_page, &$to_display ) {
                if ( ! isset( $children_pages[$parent] ) )
                        return;
 
@@ -434,7 +782,6 @@ class WP_Posts_List_Table extends WP_List_Table {
                $end = $start + $per_page;
 
                foreach ( $children_pages[$parent] as $page ) {
-
                        if ( $count >= $end )
                                break;
 
@@ -443,7 +790,13 @@ class WP_Posts_List_Table extends WP_List_Table {
                                $my_parents = array();
                                $my_parent = $page->post_parent;
                                while ( $my_parent ) {
-                                       $my_parent = get_post( $my_parent );
+                                       // Get the ID from the list or the attribute if my_parent is an object
+                                       $parent_id = $my_parent;
+                                       if ( is_object( $my_parent ) ) {
+                                               $parent_id = $my_parent->ID;
+                                       }
+
+                                       $my_parent = get_post( $parent_id );
                                        $my_parents[] = $my_parent;
                                        if ( !$my_parent->post_parent )
                                                break;
@@ -451,289 +804,534 @@ class WP_Posts_List_Table extends WP_List_Table {
                                }
                                $num_parents = count( $my_parents );
                                while ( $my_parent = array_pop( $my_parents ) ) {
-                                       echo "\t";
-                                       $this->single_row( $my_parent, $level - $num_parents );
+                                       $to_display[$my_parent->ID] = $level - $num_parents;
                                        $num_parents--;
                                }
                        }
 
                        if ( $count >= $start ) {
-                               echo "\t";
-                               $this->single_row( $page, $level );
+                               $to_display[$page->ID] = $level;
                        }
 
                        $count++;
 
-                       $this->_page_rows( $children_pages, $count, $page->ID, $level + 1, $pagenum, $per_page );
+                       $this->_page_rows( $children_pages, $count, $page->ID, $level + 1, $pagenum, $per_page, $to_display );
                }
 
                unset( $children_pages[$parent] ); //required in order to keep track of orphans
        }
 
-       function single_row( $post, $level = 0 ) {
+       /**
+        * Handles the checkbox column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_cb( $post ) {
+               if ( current_user_can( 'edit_post', $post->ID ) ): ?>
+                       <label class="screen-reader-text" for="cb-select-<?php the_ID(); ?>"><?php
+                               printf( __( 'Select %s' ), _draft_or_post_title() );
+                       ?></label>
+                       <input id="cb-select-<?php the_ID(); ?>" type="checkbox" name="post[]" value="<?php the_ID(); ?>" />
+                       <div class="locked-indicator">
+                               <span class="locked-indicator-icon" aria-hidden="true"></span>
+                               <span class="screen-reader-text"><?php
+                               printf(
+                                       /* translators: %s: post title */
+                                       __( '&#8220;%s&#8221; is locked' ),
+                                       _draft_or_post_title()
+                               );
+                               ?></span>
+                       </div>
+               <?php endif;
+       }
+
+       /**
+        * @since 4.3.0
+        * @access protected
+        *
+        * @param WP_Post $post
+        * @param string  $classes
+        * @param string  $data
+        * @param string  $primary
+        */
+       protected function _column_title( $post, $classes, $data, $primary ) {
+               echo '<td class="' . $classes . ' page-title" ', $data, '>';
+               echo $this->column_title( $post );
+               echo $this->handle_row_actions( $post, 'title', $primary );
+               echo '</td>';
+       }
+
+       /**
+        * Handles the title column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @global string $mode
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_title( $post ) {
                global $mode;
-               static $alternate;
 
-               $global_post = get_post();
-               $GLOBALS['post'] = $post;
-               setup_postdata( $post );
+               if ( $this->hierarchical_display ) {
+                       if ( 0 === $this->current_level && (int) $post->post_parent > 0 ) {
+                               // Sent level 0 by accident, by default, or because we don't know the actual level.
+                               $find_main_page = (int) $post->post_parent;
+                               while ( $find_main_page > 0 ) {
+                                       $parent = get_post( $find_main_page );
+
+                                       if ( is_null( $parent ) ) {
+                                               break;
+                                       }
+
+                                       $this->current_level++;
+                                       $find_main_page = (int) $parent->post_parent;
+
+                                       if ( ! isset( $parent_name ) ) {
+                                               /** This filter is documented in wp-includes/post-template.php */
+                                               $parent_name = apply_filters( 'the_title', $parent->post_title, $parent->ID );
+                                       }
+                               }
+                       }
+               }
 
-               $edit_link = get_edit_post_link( $post->ID );
-               $title = _draft_or_post_title();
-               $post_type_object = get_post_type_object( $post->post_type );
                $can_edit_post = current_user_can( 'edit_post', $post->ID );
 
-               $alternate = 'alternate' == $alternate ? '' : 'alternate';
-               $classes = $alternate . ' iedit author-' . ( get_current_user_id() == $post->post_author ? 'self' : 'other' );
+               if ( $can_edit_post && $post->post_status != 'trash' ) {
+                       $lock_holder = wp_check_post_lock( $post->ID );
 
-               $lock_holder = wp_check_post_lock( $post->ID );
-               if ( $lock_holder ) {
-                       $classes .= ' wp-locked';
-                       $lock_holder = get_userdata( $lock_holder );
+                       if ( $lock_holder ) {
+                               $lock_holder = get_userdata( $lock_holder );
+                               $locked_avatar = get_avatar( $lock_holder->ID, 18 );
+                               $locked_text = esc_html( sprintf( __( '%s is currently editing' ), $lock_holder->display_name ) );
+                       } else {
+                               $locked_avatar = $locked_text = '';
+                       }
+
+                       echo '<div class="locked-info"><span class="locked-avatar">' . $locked_avatar . '</span> <span class="locked-text">' . $locked_text . "</span></div>\n";
                }
-       ?>
-               <tr id="post-<?php echo $post->ID; ?>" class="<?php echo implode( ' ', get_post_class( $classes, $post->ID ) ); ?>" valign="top">
-       <?php
 
-               list( $columns, $hidden ) = $this->get_column_info();
+               $pad = str_repeat( '&#8212; ', $this->current_level );
+               echo "<strong>";
 
-               foreach ( $columns as $column_name => $column_display_name ) {
-                       $class = "class=\"$column_name column-$column_name\"";
+               $format = get_post_format( $post->ID );
+               if ( $format ) {
+                       $label = get_post_format_string( $format );
 
-                       $style = '';
-                       if ( in_array( $column_name, $hidden ) )
-                               $style = ' style="display:none;"';
+                       $format_class = 'post-state-format post-format-icon post-format-' . $format;
 
-                       $attributes = "$class$style";
+                       $format_args = array(
+                               'post_format' => $format,
+                               'post_type' => $post->post_type
+                       );
 
-                       switch ( $column_name ) {
+                       echo $this->get_edit_link( $format_args, $label . ':', $format_class );
+               }
 
-                       case 'cb':
-                       ?>
-                       <th scope="row" class="check-column">
-                               <?php
-                               if ( $can_edit_post ) {
+               $title = _draft_or_post_title();
 
-                               ?>
-                               <label class="screen-reader-text" for="cb-select-<?php the_ID(); ?>"><?php printf( __( 'Select %s' ), $title ); ?></label>
-                               <input id="cb-select-<?php the_ID(); ?>" type="checkbox" name="post[]" value="<?php the_ID(); ?>" />
-                               <div class="locked-indicator"></div>
-                               <?php
-                               }
-                               ?>
-                       </th>
-                       <?php
-                       break;
-
-                       case 'title':
-                               $attributes = 'class="post-title page-title column-title"' . $style;
-                               if ( $this->hierarchical_display ) {
-                                       if ( 0 == $level && (int) $post->post_parent > 0 ) {
-                                               //sent level 0 by accident, by default, or because we don't know the actual level
-                                               $find_main_page = (int) $post->post_parent;
-                                               while ( $find_main_page > 0 ) {
-                                                       $parent = get_post( $find_main_page );
-
-                                                       if ( is_null( $parent ) )
-                                                               break;
-
-                                                       $level++;
-                                                       $find_main_page = (int) $parent->post_parent;
-
-                                                       if ( !isset( $parent_name ) ) {
-                                                               /** This filter is documented in wp-includes/post-template.php */
-                                                               $parent_name = apply_filters( 'the_title', $parent->post_title, $parent->ID );
-                                                       }
-                                               }
-                                       }
-                               }
+               if ( $can_edit_post && $post->post_status != 'trash' ) {
+                       printf(
+                               '<a class="row-title" href="%s" aria-label="%s">%s%s</a>',
+                               get_edit_post_link( $post->ID ),
+                               /* translators: %s: post title */
+                               esc_attr( sprintf( __( '&#8220;%s&#8221; (Edit)' ), $title ) ),
+                               $pad,
+                               $title
+                       );
+               } else {
+                       echo $pad . $title;
+               }
+               _post_states( $post );
 
-                               $pad = str_repeat( '&#8212; ', $level );
-                               echo "<td $attributes><strong>";
+               if ( isset( $parent_name ) ) {
+                       $post_type_object = get_post_type_object( $post->post_type );
+                       echo ' | ' . $post_type_object->labels->parent_item_colon . ' ' . esc_html( $parent_name );
+               }
+               echo "</strong>\n";
 
-                               if ( $format = get_post_format( $post->ID ) ) {
-                                       $label = get_post_format_string( $format );
+               if ( ! is_post_type_hierarchical( $this->screen->post_type ) && 'excerpt' === $mode && current_user_can( 'read_post', $post->ID ) ) {
+                       echo esc_html( get_the_excerpt() );
+               }
 
-                                       echo '<a href="' . esc_url( add_query_arg( array( 'post_format' => $format, 'post_type' => $post->post_type ), 'edit.php' ) ) . '" class="post-state-format post-format-icon post-format-' . $format . '" title="' . $label . '">' . $label . ":</a> ";
-                               }
+               get_inline_data( $post );
+       }
 
-                               if ( $can_edit_post && $post->post_status != 'trash' ) {
-                                       echo '<a class="row-title" href="' . $edit_link . '" title="' . esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $title ) ) . '">' . $pad . $title . '</a>';
-                               } else {
-                                       echo $pad . $title;
-                               }
-                               _post_states( $post );
+       /**
+        * Handles the post date column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @global string $mode
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_date( $post ) {
+               global $mode;
 
-                               if ( isset( $parent_name ) )
-                                       echo ' | ' . $post_type_object->labels->parent_item_colon . ' ' . esc_html( $parent_name );
+               if ( '0000-00-00 00:00:00' === $post->post_date ) {
+                       $t_time = $h_time = __( 'Unpublished' );
+                       $time_diff = 0;
+               } else {
+                       $t_time = get_the_time( __( 'Y/m/d g:i:s a' ) );
+                       $m_time = $post->post_date;
+                       $time = get_post_time( 'G', true, $post );
 
-                               echo "</strong>\n";
+                       $time_diff = time() - $time;
 
-                               if ( $can_edit_post && $post->post_status != 'trash' ) {
-                                       if ( $lock_holder ) {
-                                               $locked_avatar = get_avatar( $lock_holder->ID, 18 );
-                                               $locked_text = esc_html( sprintf( __( '%s is currently editing' ), $lock_holder->display_name ) );
-                                       } else {
-                                               $locked_avatar = $locked_text = '';
-                                       }
+                       if ( $time_diff > 0 && $time_diff < DAY_IN_SECONDS ) {
+                               $h_time = sprintf( __( '%s ago' ), human_time_diff( $time ) );
+                       } else {
+                               $h_time = mysql2date( __( 'Y/m/d' ), $m_time );
+                       }
+               }
 
-                                       echo '<div class="locked-info"><span class="locked-avatar">' . $locked_avatar . '</span> <span class="locked-text">' . $locked_text . "</span></div>\n";
-                               }
+               if ( 'publish' === $post->post_status ) {
+                       _e( 'Published' );
+               } elseif ( 'future' === $post->post_status ) {
+                       if ( $time_diff > 0 ) {
+                               echo '<strong class="error-message">' . __( 'Missed schedule' ) . '</strong>';
+                       } else {
+                               _e( 'Scheduled' );
+                       }
+               } else {
+                       _e( 'Last Modified' );
+               }
+               echo '<br />';
+               if ( 'excerpt' === $mode ) {
+                       /**
+                        * Filters the published time of the post.
+                        *
+                        * If `$mode` equals 'excerpt', the published time and date are both displayed.
+                        * If `$mode` equals 'list' (default), the publish date is displayed, with the
+                        * time and date together available as an abbreviation definition.
+                        *
+                        * @since 2.5.1
+                        *
+                        * @param string  $t_time      The published time.
+                        * @param WP_Post $post        Post object.
+                        * @param string  $column_name The column name.
+                        * @param string  $mode        The list display mode ('excerpt' or 'list').
+                        */
+                       echo apply_filters( 'post_date_column_time', $t_time, $post, 'date', $mode );
+               } else {
 
-                               if ( ! $this->hierarchical_display && 'excerpt' == $mode && current_user_can( 'read_post', $post->ID ) )
-                                               the_excerpt();
+                       /** This filter is documented in wp-admin/includes/class-wp-posts-list-table.php */
+                       echo '<abbr title="' . $t_time . '">' . apply_filters( 'post_date_column_time', $h_time, $post, 'date', $mode ) . '</abbr>';
+               }
+       }
 
-                               $actions = array();
-                               if ( $can_edit_post && 'trash' != $post->post_status ) {
-                                       $actions['edit'] = '<a href="' . get_edit_post_link( $post->ID, true ) . '" title="' . esc_attr( __( 'Edit this item' ) ) . '">' . __( 'Edit' ) . '</a>';
-                                       $actions['inline hide-if-no-js'] = '<a href="#" class="editinline" title="' . esc_attr( __( 'Edit this item inline' ) ) . '">' . __( 'Quick&nbsp;Edit' ) . '</a>';
-                               }
-                               if ( current_user_can( 'delete_post', $post->ID ) ) {
-                                       if ( 'trash' == $post->post_status )
-                                               $actions['untrash'] = "<a title='" . esc_attr( __( 'Restore this item from the Trash' ) ) . "' href='" . wp_nonce_url( admin_url( sprintf( $post_type_object->_edit_link . '&amp;action=untrash', $post->ID ) ), 'untrash-post_' . $post->ID ) . "'>" . __( 'Restore' ) . "</a>";
-                                       elseif ( EMPTY_TRASH_DAYS )
-                                               $actions['trash'] = "<a class='submitdelete' title='" . esc_attr( __( 'Move this item to the Trash' ) ) . "' href='" . get_delete_post_link( $post->ID ) . "'>" . __( 'Trash' ) . "</a>";
-                                       if ( 'trash' == $post->post_status || !EMPTY_TRASH_DAYS )
-                                               $actions['delete'] = "<a class='submitdelete' title='" . esc_attr( __( 'Delete this item permanently' ) ) . "' href='" . get_delete_post_link( $post->ID, '', true ) . "'>" . __( 'Delete Permanently' ) . "</a>";
-                               }
-                               if ( $post_type_object->public ) {
-                                       if ( in_array( $post->post_status, array( 'pending', 'draft', 'future' ) ) ) {
-                                               if ( $can_edit_post )
-                                                       $actions['view'] = '<a href="' . esc_url( apply_filters( 'preview_post_link', set_url_scheme( add_query_arg( 'preview', 'true', get_permalink( $post->ID ) ) ) ) ) . '" title="' . esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $title ) ) . '" rel="permalink">' . __( 'Preview' ) . '</a>';
-                                       } elseif ( 'trash' != $post->post_status ) {
-                                               $actions['view'] = '<a href="' . get_permalink( $post->ID ) . '" title="' . esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $title ) ) . '" rel="permalink">' . __( 'View' ) . '</a>';
+       /**
+        * Handles the comments column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_comments( $post ) {
+               ?>
+               <div class="post-com-count-wrapper">
+               <?php
+                       $pending_comments = isset( $this->comment_pending_count[$post->ID] ) ? $this->comment_pending_count[$post->ID] : 0;
+
+                       $this->comments_bubble( $post->ID, $pending_comments );
+               ?>
+               </div>
+               <?php
+       }
+
+       /**
+        * Handles the post author column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_author( $post ) {
+               $args = array(
+                       'post_type' => $post->post_type,
+                       'author' => get_the_author_meta( 'ID' )
+               );
+               echo $this->get_edit_link( $args, get_the_author() );
+       }
+
+       /**
+        * Handles the default column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post        The current WP_Post object.
+        * @param string  $column_name The current column name.
+        */
+       public function column_default( $post, $column_name ) {
+               if ( 'categories' === $column_name ) {
+                       $taxonomy = 'category';
+               } elseif ( 'tags' === $column_name ) {
+                       $taxonomy = 'post_tag';
+               } elseif ( 0 === strpos( $column_name, 'taxonomy-' ) ) {
+                       $taxonomy = substr( $column_name, 9 );
+               } else {
+                       $taxonomy = false;
+               }
+               if ( $taxonomy ) {
+                       $taxonomy_object = get_taxonomy( $taxonomy );
+                       $terms = get_the_terms( $post->ID, $taxonomy );
+                       if ( is_array( $terms ) ) {
+                               $out = array();
+                               foreach ( $terms as $t ) {
+                                       $posts_in_term_qv = array();
+                                       if ( 'post' != $post->post_type ) {
+                                               $posts_in_term_qv['post_type'] = $post->post_type;
+                                       }
+                                       if ( $taxonomy_object->query_var ) {
+                                               $posts_in_term_qv[ $taxonomy_object->query_var ] = $t->slug;
+                                       } else {
+                                               $posts_in_term_qv['taxonomy'] = $taxonomy;
+                                               $posts_in_term_qv['term'] = $t->slug;
                                        }
+
+                                       $label = esc_html( sanitize_term_field( 'name', $t->name, $t->term_id, $taxonomy, 'display' ) );
+                                       $out[] = $this->get_edit_link( $posts_in_term_qv, $label );
                                }
+                               /* translators: used between list items, there is a space after the comma */
+                               echo join( __( ', ' ), $out );
+                       } else {
+                               echo '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">' . $taxonomy_object->labels->no_terms . '</span>';
+                       }
+                       return;
+               }
 
-                               $actions = apply_filters( is_post_type_hierarchical( $post->post_type ) ? 'page_row_actions' : 'post_row_actions', $actions, $post );
-                               echo $this->row_actions( $actions );
+               if ( is_post_type_hierarchical( $post->post_type ) ) {
+
+                       /**
+                        * Fires in each custom column on the Posts list table.
+                        *
+                        * This hook only fires if the current post type is hierarchical,
+                        * such as pages.
+                        *
+                        * @since 2.5.0
+                        *
+                        * @param string $column_name The name of the column to display.
+                        * @param int    $post_id     The current post ID.
+                        */
+                       do_action( 'manage_pages_custom_column', $column_name, $post->ID );
+               } else {
 
-                               get_inline_data( $post );
-                               echo '</td>';
-                       break;
+                       /**
+                        * Fires in each custom column in the Posts list table.
+                        *
+                        * This hook only fires if the current post type is non-hierarchical,
+                        * such as posts.
+                        *
+                        * @since 1.5.0
+                        *
+                        * @param string $column_name The name of the column to display.
+                        * @param int    $post_id     The current post ID.
+                        */
+                       do_action( 'manage_posts_custom_column', $column_name, $post->ID );
+               }
 
-                       case 'date':
-                               if ( '0000-00-00 00:00:00' == $post->post_date ) {
-                                       $t_time = $h_time = __( 'Unpublished' );
-                                       $time_diff = 0;
-                               } else {
-                                       $t_time = get_the_time( __( 'Y/m/d g:i:s A' ) );
-                                       $m_time = $post->post_date;
-                                       $time = get_post_time( 'G', true, $post );
+               /**
+                * Fires for each custom column of a specific post type in the Posts list table.
+                *
+                * The dynamic portion of the hook name, `$post->post_type`, refers to the post type.
+                *
+                * @since 3.1.0
+                *
+                * @param string $column_name The name of the column to display.
+                * @param int    $post_id     The current post ID.
+                */
+               do_action( "manage_{$post->post_type}_posts_custom_column", $column_name, $post->ID );
+       }
 
-                                       $time_diff = time() - $time;
+       /**
+        * @global WP_Post $post
+        *
+        * @param int|WP_Post $post
+        * @param int         $level
+        */
+       public function single_row( $post, $level = 0 ) {
+               $global_post = get_post();
 
-                                       if ( $time_diff > 0 && $time_diff < DAY_IN_SECONDS )
-                                               $h_time = sprintf( __( '%s ago' ), human_time_diff( $time ) );
-                                       else
-                                               $h_time = mysql2date( __( 'Y/m/d' ), $m_time );
-                               }
+               $post = get_post( $post );
+               $this->current_level = $level;
 
-                               echo '<td ' . $attributes . '>';
-                               if ( 'excerpt' == $mode )
-                                       echo apply_filters( 'post_date_column_time', $t_time, $post, $column_name, $mode );
-                               else
-                                       echo '<abbr title="' . $t_time . '">' . apply_filters( 'post_date_column_time', $h_time, $post, $column_name, $mode ) . '</abbr>';
-                               echo '<br />';
-                               if ( 'publish' == $post->post_status ) {
-                                       _e( 'Published' );
-                               } elseif ( 'future' == $post->post_status ) {
-                                       if ( $time_diff > 0 )
-                                               echo '<strong class="attention">' . __( 'Missed schedule' ) . '</strong>';
-                                       else
-                                               _e( 'Scheduled' );
-                               } else {
-                                       _e( 'Last Modified' );
-                               }
-                               echo '</td>';
-                       break;
+               $GLOBALS['post'] = $post;
+               setup_postdata( $post );
 
-                       case 'comments':
-                       ?>
-                       <td <?php echo $attributes ?>><div class="post-com-count-wrapper">
-                       <?php
-                               $pending_comments = isset( $this->comment_pending_count[$post->ID] ) ? $this->comment_pending_count[$post->ID] : 0;
+               $classes = 'iedit author-' . ( get_current_user_id() == $post->post_author ? 'self' : 'other' );
 
-                               $this->comments_bubble( $post->ID, $pending_comments );
-                       ?>
-                       </div></td>
-                       <?php
-                       break;
+               $lock_holder = wp_check_post_lock( $post->ID );
+               if ( $lock_holder ) {
+                       $classes .= ' wp-locked';
+               }
 
-                       case 'author':
-                       ?>
-                       <td <?php echo $attributes ?>><?php
-                               printf( '<a href="%s">%s</a>',
-                                       esc_url( add_query_arg( array( 'post_type' => $post->post_type, 'author' => get_the_author_meta( 'ID' ) ), 'edit.php' )),
-                                       get_the_author()
-                               );
-                       ?></td>
-                       <?php
-                       break;
-
-                       default:
-                               if ( 'categories' == $column_name )
-                                       $taxonomy = 'category';
-                               elseif ( 'tags' == $column_name )
-                                       $taxonomy = 'post_tag';
-                               elseif ( 0 === strpos( $column_name, 'taxonomy-' ) )
-                                       $taxonomy = substr( $column_name, 9 );
-                               else
-                                       $taxonomy = false;
-
-                               if ( $taxonomy ) {
-                                       $taxonomy_object = get_taxonomy( $taxonomy );
-                                       echo '<td ' . $attributes . '>';
-                                       if ( $terms = get_the_terms( $post->ID, $taxonomy ) ) {
-                                               $out = array();
-                                               foreach ( $terms as $t ) {
-                                                       $posts_in_term_qv = array();
-                                                       if ( 'post' != $post->post_type )
-                                                               $posts_in_term_qv['post_type'] = $post->post_type;
-                                                       if ( $taxonomy_object->query_var ) {
-                                                               $posts_in_term_qv[ $taxonomy_object->query_var ] = $t->slug;
-                                                       } else {
-                                                               $posts_in_term_qv['taxonomy'] = $taxonomy;
-                                                               $posts_in_term_qv['term'] = $t->slug;
-                                                       }
-
-                                                       $out[] = sprintf( '<a href="%s">%s</a>',
-                                                               esc_url( add_query_arg( $posts_in_term_qv, 'edit.php' ) ),
-                                                               esc_html( sanitize_term_field( 'name', $t->name, $t->term_id, $taxonomy, 'display' ) )
-                                                       );
-                                               }
-                                               /* translators: used between list items, there is a space after the comma */
-                                               echo join( __( ', ' ), $out );
-                                       } else {
-                                               echo '&#8212;';
-                                       }
-                                       echo '</td>';
-                                       break;
-                               }
-                       ?>
-                       <td <?php echo $attributes ?>><?php
-                               if ( is_post_type_hierarchical( $post->post_type ) )
-                                       do_action( 'manage_pages_custom_column', $column_name, $post->ID );
-                               else
-                                       do_action( 'manage_posts_custom_column', $column_name, $post->ID );
-                               do_action( "manage_{$post->post_type}_posts_custom_column", $column_name, $post->ID );
-                       ?></td>
-                       <?php
-                       break;
-                       }
+               if ( $post->post_parent ) {
+                   $count = count( get_post_ancestors( $post->ID ) );
+                   $classes .= ' level-'. $count;
+               } else {
+                   $classes .= ' level-0';
                }
        ?>
+               <tr id="post-<?php echo $post->ID; ?>" class="<?php echo implode( ' ', get_post_class( $classes, $post->ID ) ); ?>">
+                       <?php $this->single_row_columns( $post ); ?>
                </tr>
        <?php
                $GLOBALS['post'] = $global_post;
        }
 
+       /**
+        * Gets the name of the default primary column.
+        *
+        * @since 4.3.0
+        * @access protected
+        *
+        * @return string Name of the default primary column, in this case, 'title'.
+        */
+       protected function get_default_primary_column_name() {
+               return 'title';
+       }
+
+       /**
+        * Generates and displays row action links.
+        *
+        * @since 4.3.0
+        * @access protected
+        *
+        * @param object $post        Post being acted upon.
+        * @param string $column_name Current column name.
+        * @param string $primary     Primary column name.
+        * @return string Row actions output for posts.
+        */
+       protected function handle_row_actions( $post, $column_name, $primary ) {
+               if ( $primary !== $column_name ) {
+                       return '';
+               }
+
+               $post_type_object = get_post_type_object( $post->post_type );
+               $can_edit_post = current_user_can( 'edit_post', $post->ID );
+               $actions = array();
+               $title = _draft_or_post_title();
+
+               if ( $can_edit_post && 'trash' != $post->post_status ) {
+                       $actions['edit'] = sprintf(
+                               '<a href="%s" aria-label="%s">%s</a>',
+                               get_edit_post_link( $post->ID ),
+                               /* translators: %s: post title */
+                               esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $title ) ),
+                               __( 'Edit' )
+                       );
+                       $actions['inline hide-if-no-js'] = sprintf(
+                               '<a href="#" class="editinline" aria-label="%s">%s</a>',
+                               /* translators: %s: post title */
+                               esc_attr( sprintf( __( 'Quick edit &#8220;%s&#8221; inline' ), $title ) ),
+                               __( 'Quick&nbsp;Edit' )
+                       );
+               }
+
+               if ( current_user_can( 'delete_post', $post->ID ) ) {
+                       if ( 'trash' === $post->post_status ) {
+                               $actions['untrash'] = sprintf(
+                                       '<a href="%s" aria-label="%s">%s</a>',
+                                       wp_nonce_url( admin_url( sprintf( $post_type_object->_edit_link . '&amp;action=untrash', $post->ID ) ), 'untrash-post_' . $post->ID ),
+                                       /* translators: %s: post title */
+                                       esc_attr( sprintf( __( 'Restore &#8220;%s&#8221; from the Trash' ), $title ) ),
+                                       __( 'Restore' )
+                               );
+                       } elseif ( EMPTY_TRASH_DAYS ) {
+                               $actions['trash'] = sprintf(
+                                       '<a href="%s" class="submitdelete" aria-label="%s">%s</a>',
+                                       get_delete_post_link( $post->ID ),
+                                       /* translators: %s: post title */
+                                       esc_attr( sprintf( __( 'Move &#8220;%s&#8221; to the Trash' ), $title ) ),
+                                       _x( 'Trash', 'verb' )
+                               );
+                       }
+                       if ( 'trash' === $post->post_status || ! EMPTY_TRASH_DAYS ) {
+                               $actions['delete'] = sprintf(
+                                       '<a href="%s" class="submitdelete" aria-label="%s">%s</a>',
+                                       get_delete_post_link( $post->ID, '', true ),
+                                       /* translators: %s: post title */
+                                       esc_attr( sprintf( __( 'Delete &#8220;%s&#8221; permanently' ), $title ) ),
+                                       __( 'Delete Permanently' )
+                               );
+                       }
+               }
+
+               if ( is_post_type_viewable( $post_type_object ) ) {
+                       if ( in_array( $post->post_status, array( 'pending', 'draft', 'future' ) ) ) {
+                               if ( $can_edit_post ) {
+                                       $preview_link = get_preview_post_link( $post );
+                                       $actions['view'] = sprintf(
+                                               '<a href="%s" rel="permalink" aria-label="%s">%s</a>',
+                                               esc_url( $preview_link ),
+                                               /* translators: %s: post title */
+                                               esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $title ) ),
+                                               __( 'Preview' )
+                                       );
+                               }
+                       } elseif ( 'trash' != $post->post_status ) {
+                               $actions['view'] = sprintf(
+                                       '<a href="%s" rel="permalink" aria-label="%s">%s</a>',
+                                       get_permalink( $post->ID ),
+                                       /* translators: %s: post title */
+                                       esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $title ) ),
+                                       __( 'View' )
+                               );
+                       }
+               }
+
+               if ( is_post_type_hierarchical( $post->post_type ) ) {
+
+                       /**
+                        * Filters the array of row action links on the Pages list table.
+                        *
+                        * The filter is evaluated only for hierarchical post types.
+                        *
+                        * @since 2.8.0
+                        *
+                        * @param array $actions An array of row action links. Defaults are
+                        *                         'Edit', 'Quick Edit', 'Restore, 'Trash',
+                        *                         'Delete Permanently', 'Preview', and 'View'.
+                        * @param WP_Post $post The post object.
+                        */
+                       $actions = apply_filters( 'page_row_actions', $actions, $post );
+               } else {
+
+                       /**
+                        * Filters the array of row action links on the Posts list table.
+                        *
+                        * The filter is evaluated only for non-hierarchical post types.
+                        *
+                        * @since 2.8.0
+                        *
+                        * @param array $actions An array of row action links. Defaults are
+                        *                         'Edit', 'Quick Edit', 'Restore, 'Trash',
+                        *                         'Delete Permanently', 'Preview', and 'View'.
+                        * @param WP_Post $post The post object.
+                        */
+                       $actions = apply_filters( 'post_row_actions', $actions, $post );
+               }
+
+               return $this->row_actions( $actions );
+       }
+
        /**
         * Outputs the hidden row displayed when inline editing
         *
         * @since 3.1.0
+        *
+        * @global string $mode
         */
-       function inline_edit() {
+       public function inline_edit() {
                global $mode;
 
                $screen = $this->screen;
@@ -745,10 +1343,23 @@ class WP_Posts_List_Table extends WP_List_Table {
                $hierarchical_taxonomies = array();
                $flat_taxonomies = array();
                foreach ( $taxonomy_names as $taxonomy_name ) {
+
                        $taxonomy = get_taxonomy( $taxonomy_name );
 
-                       if ( !$taxonomy->show_ui )
+                       $show_in_quick_edit = $taxonomy->show_in_quick_edit;
+
+                       /**
+                        * Filters whether the current taxonomy should be shown in the Quick Edit panel.
+                        *
+                        * @since 4.2.0
+                        *
+                        * @param bool   $show_in_quick_edit Whether to show the current taxonomy in Quick Edit.
+                        * @param string $taxonomy_name      Taxonomy name.
+                        * @param string $post_type          Post type of current Quick Edit post.
+                        */
+                       if ( ! apply_filters( 'quick_edit_show_taxonomy', $show_in_quick_edit, $taxonomy_name, $screen->post_type ) ) {
                                continue;
+                       }
 
                        if ( $taxonomy->hierarchical )
                                $hierarchical_taxonomies[] = $taxonomy;
@@ -756,13 +1367,13 @@ class WP_Posts_List_Table extends WP_List_Table {
                                $flat_taxonomies[] = $taxonomy;
                }
 
-               $m = ( isset( $mode ) && 'excerpt' == $mode ) ? 'excerpt' : 'list';
+               $m = ( isset( $mode ) && 'excerpt' === $mode ) ? 'excerpt' : 'list';
                $can_publish = current_user_can( $post_type_object->cap->publish_posts );
                $core_columns = array( 'cb' => true, 'date' => true, 'title' => true, 'categories' => true, 'tags' => true, 'comments' => true, 'author' => true );
 
        ?>
 
-       <form method="get" action=""><table style="display: none"><tbody id="inlineedit">
+       <form method="get"><table style="display: none"><tbody id="inlineedit">
                <?php
                $hclass = count( $hierarchical_taxonomies ) ? 'post' : 'page';
                $bulk = 0;
@@ -772,8 +1383,9 @@ class WP_Posts_List_Table extends WP_List_Table {
                        echo $bulk ? " bulk-edit-row bulk-edit-row-$hclass bulk-edit-{$screen->post_type}" : " quick-edit-row quick-edit-row-$hclass inline-edit-{$screen->post_type}";
                ?>" style="display: none"><td colspan="<?php echo $this->get_column_count(); ?>" class="colspanchange">
 
-               <fieldset class="inline-edit-col-left"><div class="inline-edit-col">
-                       <h4><?php echo $bulk ? __( 'Bulk Edit' ) : __( 'Quick Edit' ); ?></h4>
+               <fieldset class="inline-edit-col-left">
+                       <legend class="inline-edit-legend"><?php echo $bulk ? __( 'Bulk Edit' ) : __( 'Quick Edit' ); ?></legend>
+                       <div class="inline-edit-col">
        <?php
 
        if ( post_type_supports( $screen->post_type, 'title' ) ) :
@@ -798,10 +1410,10 @@ class WP_Posts_List_Table extends WP_List_Table {
        endif; // post_type_supports title ?>
 
        <?php if ( !$bulk ) : ?>
-                       <label><span class="title"><?php _e( 'Date' ); ?></span></label>
-                       <div class="inline-edit-date">
+                       <fieldset class="inline-edit-date">
+                       <legend><span class="title"><?php _e( 'Date' ); ?></span></legend>
                                <?php touch_time( 1, 1, 0, 1 ); ?>
-                       </div>
+                       </fieldset>
                        <br class="clear" />
        <?php endif; // $bulk
 
@@ -815,7 +1427,8 @@ class WP_Posts_List_Table extends WP_List_Table {
                                        'name' => 'post_author',
                                        'class'=> 'authors',
                                        'multi' => 1,
-                                       'echo' => 0
+                                       'echo' => 0,
+                                       'show' => 'display_name_with_login',
                                );
                                if ( $bulk )
                                        $users_opt['show_option_none'] = __( '&mdash; No Change &mdash;' );
@@ -832,24 +1445,24 @@ class WP_Posts_List_Table extends WP_List_Table {
        <?php if ( !$bulk ) echo $authors_dropdown;
        endif; // post_type_supports author
 
-       if ( !$bulk ) :
+       if ( !$bulk && $can_publish ) :
        ?>
 
-                       <div class="inline-edit-group">
+                       <div class="inline-edit-group wp-clearfix">
                                <label class="alignleft">
                                        <span class="title"><?php _e( 'Password' ); ?></span>
                                        <span class="input-text-wrap"><input type="text" name="post_password" class="inline-edit-password-input" value="" /></span>
                                </label>
 
-                               <em style="margin:5px 10px 0 0" class="alignleft">
+                               <em class="alignleft inline-edit-or">
                                        <?php
                                        /* translators: Between password field and private checkbox on post quick edit interface */
-                                       echo __( '&ndash;OR&ndash;' );
+                                       _e( '&ndash;OR&ndash;' );
                                        ?>
                                </em>
                                <label class="alignleft inline-edit-private">
                                        <input type="checkbox" name="keep_private" value="private" />
-                                       <span class="checkbox-title"><?php echo __( 'Private' ); ?></span>
+                                       <span class="checkbox-title"><?php _e( 'Private' ); ?></span>
                                </label>
                        </div>
 
@@ -864,7 +1477,7 @@ class WP_Posts_List_Table extends WP_List_Table {
        <?php foreach ( $hierarchical_taxonomies as $taxonomy ) : ?>
 
                        <span class="title inline-edit-categories-label"><?php echo esc_html( $taxonomy->labels->name ) ?></span>
-                       <input type="hidden" name="<?php echo ( $taxonomy->name == 'category' ) ? 'post_category[]' : 'tax_input[' . esc_attr( $taxonomy->name ) . '][]'; ?>" value="0" />
+                       <input type="hidden" name="<?php echo ( $taxonomy->name === 'category' ) ? 'post_category[]' : 'tax_input[' . esc_attr( $taxonomy->name ) . '][]'; ?>" value="0" />
                        <ul class="cat-checklist <?php echo esc_attr( $taxonomy->name )?>-checklist">
                                <?php wp_terms_checklist( null, array( 'taxonomy' => $taxonomy->name ) ) ?>
                        </ul>
@@ -899,7 +1512,18 @@ class WP_Posts_List_Table extends WP_List_Table {
 
                if ( $bulk )
                        $dropdown_args['show_option_no_change'] =  __( '&mdash; No Change &mdash;' );
+
+               /**
+                * Filters the arguments used to generate the Quick Edit page-parent drop-down.
+                *
+                * @since 2.7.0
+                *
+                * @see wp_dropdown_pages()
+                *
+                * @param array $dropdown_args An array of arguments.
+                */
                $dropdown_args = apply_filters( 'quick_edit_dropdown_pages_args', $dropdown_args );
+
                wp_dropdown_pages( $dropdown_args );
        ?>
                        </label>
@@ -914,34 +1538,38 @@ class WP_Posts_List_Table extends WP_List_Table {
                                <span class="input-text-wrap"><input type="text" name="menu_order" class="inline-edit-menu-order-input" value="<?php echo $post->menu_order ?>" /></span>
                        </label>
 
-       <?php   endif; // !$bulk
-
-                       if ( 'page' == $screen->post_type ) :
-       ?>
-
-                       <label>
-                               <span class="title"><?php _e( 'Template' ); ?></span>
-                               <select name="page_template">
-       <?php   if ( $bulk ) : ?>
-                                       <option value="-1"><?php _e( '&mdash; No Change &mdash;' ); ?></option>
-       <?php   endif; // $bulk ?>
-                                       <option value="default"><?php _e( 'Default Template' ); ?></option>
-                                       <?php page_template_dropdown() ?>
-                               </select>
-                       </label>
-
        <?php
-                       endif; // page post_type
+                       endif; // !$bulk
                endif; // page-attributes
        ?>
 
+       <?php if ( 0 < count( get_page_templates( null, $screen->post_type ) ) ) : ?>
+               <label>
+                       <span class="title"><?php _e( 'Template' ); ?></span>
+                       <select name="page_template">
+<?php  if ( $bulk ) : ?>
+                               <option value="-1"><?php _e( '&mdash; No Change &mdash;' ); ?></option>
+<?php  endif; // $bulk ?>
+                <?php
+                               /** This filter is documented in wp-admin/includes/meta-boxes.php */
+                               $default_title = apply_filters( 'default_page_template_title',  __( 'Default Template' ), 'quick-edit' );
+                ?>
+                               <option value="default"><?php echo esc_html( $default_title ); ?></option>
+                               <?php page_template_dropdown( '', $screen->post_type ) ?>
+                       </select>
+               </label>
+       <?php endif; ?>
+
        <?php if ( count( $flat_taxonomies ) && !$bulk ) : ?>
 
        <?php foreach ( $flat_taxonomies as $taxonomy ) : ?>
-               <?php if ( current_user_can( $taxonomy->cap->assign_terms ) ) : ?>
+               <?php if ( current_user_can( $taxonomy->cap->assign_terms ) ) :
+                       $taxonomy_name = esc_attr( $taxonomy->name );
+
+                       ?>
                        <label class="inline-edit-tags">
                                <span class="title"><?php echo esc_html( $taxonomy->labels->name ) ?></span>
-                               <textarea cols="22" rows="1" name="tax_input[<?php echo esc_attr( $taxonomy->name )?>]" class="tax_input_<?php echo esc_attr( $taxonomy->name )?>"></textarea>
+                               <textarea data-wp-taxonomy="<?php echo $taxonomy_name; ?>" cols="22" rows="1" name="tax_input[<?php echo $taxonomy_name; ?>]" class="tax_input_<?php echo $taxonomy_name; ?>"></textarea>
                        </label>
                <?php endif; ?>
 
@@ -952,7 +1580,7 @@ class WP_Posts_List_Table extends WP_List_Table {
        <?php if ( post_type_supports( $screen->post_type, 'comments' ) || post_type_supports( $screen->post_type, 'trackbacks' ) ) :
                if ( $bulk ) : ?>
 
-                       <div class="inline-edit-group">
+                       <div class="inline-edit-group wp-clearfix">
                <?php if ( post_type_supports( $screen->post_type, 'comments' ) ) : ?>
                        <label class="alignleft">
                                <span class="title"><?php _e( 'Comments' ); ?></span>
@@ -976,7 +1604,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 
        <?php else : // $bulk ?>
 
-                       <div class="inline-edit-group">
+                       <div class="inline-edit-group wp-clearfix">
                        <?php if ( post_type_supports( $screen->post_type, 'comments' ) ) : ?>
                                <label class="alignleft">
                                        <input type="checkbox" name="comment_status" value="open" />
@@ -993,7 +1621,7 @@ class WP_Posts_List_Table extends WP_List_Table {
        <?php endif; // $bulk
        endif; // post_type_supports comments or pings ?>
 
-                       <div class="inline-edit-group">
+                       <div class="inline-edit-group wp-clearfix">
                                <label class="inline-edit-status alignleft">
                                        <span class="title"><?php _e( 'Status' ); ?></span>
                                        <select name="_status">
@@ -1012,7 +1640,7 @@ class WP_Posts_List_Table extends WP_List_Table {
                                        </select>
                                </label>
 
-       <?php if ( 'post' == $screen->post_type && $can_publish && current_user_can( $post_type_object->cap->edit_others_posts ) ) : ?>
+       <?php if ( 'post' === $screen->post_type && $can_publish && current_user_can( $post_type_object->cap->edit_others_posts ) ) : ?>
 
        <?php   if ( $bulk ) : ?>
 
@@ -1040,22 +1668,23 @@ class WP_Posts_List_Table extends WP_List_Table {
 
        <?php
 
-       if ( $bulk && post_type_supports( $screen->post_type, 'post-formats' ) ) {
-               $all_post_formats = get_post_format_strings();
+       if ( $bulk && current_theme_supports( 'post-formats' ) && post_type_supports( $screen->post_type, 'post-formats' ) ) {
+               $post_formats = get_theme_support( 'post-formats' );
 
                ?>
-               <label class="alignleft" for="post_format">
+               <label class="alignleft">
                <span class="title"><?php _ex( 'Format', 'post format' ); ?></span>
                <select name="post_format">
                        <option value="-1"><?php _e( '&mdash; No Change &mdash;' ); ?></option>
+                       <option value="0"><?php echo get_post_format_string( 'standard' ); ?></option>
                        <?php
-
-                       foreach ( $all_post_formats as $slug => $format ) {
-                               ?>
-                               <option value="<?php echo esc_attr( $slug ); ?>"><?php echo esc_html( $format ); ?></option>
-                               <?php
+                       if ( is_array( $post_formats[0] ) ) {
+                               foreach ( $post_formats[0] as $format ) {
+                                       ?>
+                                       <option value="<?php echo esc_attr( $format ); ?>"><?php echo esc_html( get_post_format_string( $format ) ); ?></option>
+                                       <?php
+                               }
                        }
-
                        ?>
                </select></label>
        <?php
@@ -1072,18 +1701,42 @@ class WP_Posts_List_Table extends WP_List_Table {
                foreach ( $columns as $column_name => $column_display_name ) {
                        if ( isset( $core_columns[$column_name] ) )
                                continue;
-                       do_action( $bulk ? 'bulk_edit_custom_box' : 'quick_edit_custom_box', $column_name, $screen->post_type );
+
+                       if ( $bulk ) {
+
+                               /**
+                                * Fires once for each column in Bulk Edit mode.
+                                *
+                                * @since 2.7.0
+                                *
+                                * @param string  $column_name Name of the column to edit.
+                                * @param WP_Post $post_type   The post type slug.
+                                */
+                               do_action( 'bulk_edit_custom_box', $column_name, $screen->post_type );
+                       } else {
+
+                               /**
+                                * Fires once for each column in Quick Edit mode.
+                                *
+                                * @since 2.7.0
+                                *
+                                * @param string $column_name Name of the column to edit.
+                                * @param string $post_type   The post type slug.
+                                */
+                               do_action( 'quick_edit_custom_box', $column_name, $screen->post_type );
+                       }
+
                }
        ?>
                <p class="submit inline-edit-save">
-                       <a accesskey="c" href="#inline-edit" class="button-secondary cancel alignleft"><?php _e( 'Cancel' ); ?></a>
+                       <button type="button" class="button cancel alignleft"><?php _e( 'Cancel' ); ?></button>
                        <?php if ( ! $bulk ) {
                                wp_nonce_field( 'inlineeditnonce', '_inline_edit', false );
                                ?>
-                               <a accesskey="s" href="#inline-edit" class="button-primary save alignright"><?php _e( 'Update' ); ?></a>
+                               <button type="button" class="button button-primary save alignright"><?php _e( 'Update' ); ?></button>
                                <span class="spinner"></span>
                        <?php } else {
-                               submit_button( __( 'Update' ), 'button-primary alignright', 'bulk_edit', false, array( 'accesskey' => 's' ) );
+                               submit_button( __( 'Update' ), 'primary alignright', 'bulk_edit', false );
                        } ?>
                        <input type="hidden" name="post_view" value="<?php echo esc_attr( $m ); ?>" />
                        <input type="hidden" name="screen" value="<?php echo esc_attr( $screen->id ); ?>" />